docs: def add_query_kwargs(kwargs, visitor, constraints, index):
      """ Construct KeyConditionExpression and FilterExpression """
      (query_const, filter_const) = constraints.remove_index(index)
      kwargs["key_condition_expr"] = query_const.build(visitor)
      if filter_const:
          kwargs["filter"] = filter_const.build(visitor)
      if index.name != "TABLE":
          kwargs["index"] = index.name